Pith Number

pith:I5M5VZEO

pith:2017:I5M5VZEOFUAPJJTOA3ATOYX37U

not attested not anchored not stored refs pending

Long-Lasting Extreme Magnetic Storm Activities in 1770 Found in Historical Documents

Akito Davis Kawamura, Delores J. Knipp, Harufumi Tamazawa, Hiroaki Isobe, Hisashi Hayakawa, Ichiro Nakanishi, Kazunari Shibata, Kentaro Hattori, Kiyomi Iwahashi, Kumiko Mase, Yusuke Ebihara

arxiv:1711.00690 v1 · 2017-11-02 · astro-ph.SR · physics.hist-ph · physics.space-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{I5M5VZEOFUAPJJTOA3ATOYX37U}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T00:28:12.862181Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4759dae48e2d00f4a66e06c13762fbfd1e361f8dd77dbfe78fff0a13455a5962

Aliases

arxiv: 1711.00690 · arxiv_version: 1711.00690v1 · doi: 10.48550/arxiv.1711.00690 · pith_short_12: I5M5VZEOFUAP · pith_short_16: I5M5VZEOFUAPJJTO · pith_short_8: I5M5VZEO

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/I5M5VZEOFUAPJJTOA3ATOYX37U \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 4759dae48e2d00f4a66e06c13762fbfd1e361f8dd77dbfe78fff0a13455a5962

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "21fe92d56621016d53e0edbbd664a7b50ff5959a6bc34b29a20e5d8df07e7ecb",
    "cross_cats_sorted": [
      "physics.hist-ph",
      "physics.space-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2017-11-02T11:29:37Z",
    "title_canon_sha256": "bced909776b5334eb2f5a032e6904fb0b3be68a97026271e20831f4539038153"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.00690",
    "kind": "arxiv",
    "version": 1
  }
}